Seattle to Calgary Time Difference
Calgary is 1 hour ahead of Seattle. When it's 09:26:14 AM in Seattle, it's 10:26:14 AM in Calgary.
How Many Hours Ahead Is Calgary From Seattle?
Calgary is 1 hour ahead of Seattle. So Seattle is 1 hour behind Calgary looking the other way — the same gap, described from the other end.
In practice that means a working day in Seattle starts when it is already 10:00 AM in Calgary. The gap is not fixed all year: it becomes 2 hours on Sunday, November 1, 2026, when Calgary changes its clocks.
Best Time to Call Seattle and Calgary
Both cities are inside normal business hours between 9:00 AM and 4:00 PM in Seattle — that's 10:00 AM to 5:00 PM in Calgary. That's a 7-hour window, so a call fits comfortably in either side's working day.
both at work Seattle only Calgary only neither — hours shown along the strip are Seattle local time.
Convert a Specific Time
Pick any date and time in Seattle to see the exact equivalent in Calgary.
Common Times Converted
Seattle time on the left, Calgary time on the right.
Seattle to Calgary: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Seattle. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Seattle | Calgary | Working hours |
|---|---|---|
| 12:00 AM | 1:00 AM | — |
| 1:00 AM | 2:00 AM | — |
| 2:00 AM | 3:00 AM | — |
| 3:00 AM | 4:00 AM | — |
| 4:00 AM | 5:00 AM | — |
| 5:00 AM | 6:00 AM | — |
| 6:00 AM | 7:00 AM | — |
| 7:00 AM | 8:00 AM | — |
| 8:00 AM | 9:00 AM | Calgary only |
| 9:00 AM | 10:00 AM | Both cities |
| 10:00 AM | 11:00 AM | Both cities |
| 11:00 AM | 12:00 PM | Both cities |
| 12:00 PM | 1:00 PM | Both cities |
| 1:00 PM | 2:00 PM | Both cities |
| 2:00 PM | 3:00 PM | Both cities |
| 3:00 PM | 4:00 PM | Both cities |
| 4:00 PM | 5:00 PM | Seattle only |
| 5:00 PM | 6:00 PM | — |
| 6:00 PM | 7:00 PM | — |
| 7:00 PM | 8:00 PM | — |
| 8:00 PM | 9:00 PM | — |
| 9:00 PM | 10:00 PM | — |
| 10:00 PM | 11:00 PM | — |
| 11:00 PM | 12:00 AM next day | — |
Understanding the Seattle – Calgary Time Difference
Seattle runs on America/Los_Angeles, currently PDT (UTC-7:00). Calgary runs on America/Edmonton, currently MDT (UTC-6:00). The gap of 1 hour is simply the distance between those two offsets.
Both cities observe Daylight Saving Time, but they don't switch on the same date — so for a few weeks each year the gap between them is different again. The next shift is on Sunday, November 1, 2026, when Calgary adjusts its clocks and the difference becomes 2 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States · Daylight Saving Time in Canada.
Seattle today
Calgary today
Frequently Asked Questions
What is the time difference between Seattle and Calgary?
Calgary is currently 1 hour ahead of Seattle. That gap becomes 2 hours on Sunday, November 1, 2026, when Calgary changes its clocks.
How many hours ahead is Calgary from Seattle?
Calgary is 1 hour ahead of Seattle. Looking at it the other way, Seattle is 1 hour behind Calgary.
What time is it in Calgary when it is 9:00 AM in Seattle?
When it is 9:00 AM in Seattle, it is 10:00 AM in Calgary.
Is Calgary ahead of or behind Seattle?
Calgary is 1 hour ahead of Seattle. Calgary reaches each point in the day first, so its working day is already finishing while Seattle is still getting started.
What is the best time to call between Seattle and Calgary?
Between 9:00 AM and 4:00 PM Seattle time, which is 10:00 AM to 5:00 PM in Calgary. Both cities are inside normal business hours during that window.
Does the time difference between Seattle and Calgary change during the year?
Yes. Both cities observe Daylight Saving Time, and they do not always switch on the same date, so the gap between them shifts during the year. It changes to 2 hours on Sunday, November 1, 2026.
What time zones are Seattle and Calgary in?
Seattle uses the America/Los_Angeles time zone, currently PDT (UTC-7:00). Calgary uses America/Edmonton, currently MDT (UTC-6:00).